Losing oil pressure at idle?

Tiny
DAWNLOVE
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 224,381 MILES
When I stop at a light the oil pressure gauge goes down.
Friday, October 28th, 2022 AT 10:08 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,345 POSTS
This could be normal, how low does it go? The engine oil pressure will be lower at idle because the engine is not running as fast. If the oil had not been changed recently, I would do that with a heavier weight oil and new filter. Does the engine make a rattle noise at idle?
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Saturday, October 29th, 2022 AT 11:57 AM

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